| 锂光卤石X-ray衍射标准图谱 |
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| 引用本文： | 阳海棠,曾德文,唐垂云,李凯明,韩海军.锂光卤石X-ray衍射标准图谱[J].盐湖研究,2016,24(4):32-36. |
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| 作者姓名： | 阳海棠 曾德文 唐垂云 李凯明 韩海军 |
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| 作者单位： | 湖南工业大学冶金与材料工程学院;中南大学化学化工学院;中国科学院青海盐湖研究所 |
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| 基金项目： | 国家自然科学基金项目(U1507110)；中国博士后科学基金(2015M580699)；湖南省科技计划项目(2015RS4003); 湖南省教育厅项目(15C0387)和湖南工业大学自然科学基金资助 |
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| 摘 要： | 盐湖卤水提锂过程中需了解与掌握锂元素结晶析出与赋存状态,锂光卤石(LiCl·MgCl_2·7H_2O)作为重要的中间产物,其结构与种类均需鉴别,但由于缺乏锂光卤石的X-ray衍射标准图谱,使得常见的Xray衍射方法无法应用。利用相图原理,通过湿固相法制备高纯锂光卤石,然后对其进行X-ray衍射分析,从而提供锂光卤石X-ray衍射的标准图谱,为高镁锂比盐湖卤水提锂过程分析提供可靠的理论支撑。
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| 关 键 词： | 相图 湿固相法 锂光卤石 X-ray衍射标准图谱 |
| 收稿时间： | 2015/12/17 0:00:00 |
| 修稿时间： | 2016/1/7 0:00:00 |
The Standard Map of Lithium Carnalliteby X-ray Diffraction |
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| Institution: | School of Metallurgical Engineering, Hunan University of Technology,College of Chemistry and Chemical Engineering, Central South University,School of Metallurgical Engineering, Hunan University of Technology,School of Metallurgical Engineering, Hunan University of Technology,Qinghai Institute of Salt Lakes, Chinese Academy of Sciences |
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| Abstract: | It is important to obtain the knowledge of the type and structure of Carnallite (LiCl?MgCl2?7H2O) in the process of extracting Li from the high Mg/Li ratio salt brine. The method of X-ray diffraction is widely considered as an important method to identify the type and structure of the crystal. However, due to lacking the standard map of LiCl?MgCl2?7H2O, this method cannot be applied to identify LiCl?MgCl2?7H2O. In this paper, the pure LiCl?MgCl2?7H2O crystal was obtained by the method of Wet-Solid-Phase according to the rule of phase diagram, and moreover its standard map was also studied which will provide reliable support for extracting Li from the high Mg/Li ratio salt brine. |
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| Keywords: | Phase diagram Wet-Solid Phase LiCl MgCl2 7H2O X-ray Standard Map |
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